Trial · NCT00667108
A Study of Single-Dose Gabapentin in Transient Insomnia Induced by a Sleep Phase Advance
NCT00667108, Phase 3, Completed, Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. A Study of Single-Dose Gabapentin in Transient Insomnia Induced by a Sleep Phase Advance. Trials, record NCT00667108. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00667108
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- A Study of Single-Dose Gabapentin in Transient Insomnia Induced by a Sleep Phase Advance
- NCT number
- NCT00667108
- Status
- Completed
- Phases
- Phase 3
- Enrollment
- 784 participants, actual
- Lead sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Conditions
- Transient Insomnia
- Interventions
- Gabapentin, Gabapentin, Placebo
- First posted
- 2008-04-25
- Last updated
- 2021-02-02
Source ClinicalTrials.gov
Registered outcomes13
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Subjective sleep latency | Hour +8 | |
| Secondary | Subjective assessment of sleep refreshment | Hour +8 | |
| Secondary | Subjective assessment of sleep quality | Hour +8 | |
| Secondary | Karolinska Sleep Diary-Sleep (KSD) Quality Index | Hour +8 | |
| Secondary | KSD individual scores | Hour +8 | |
| Secondary | Digit Symbol Substitution Test | Hour +8 | |
| Secondary | Buschke Selective Reminding Test (immediate recall score, long term storage score, total number of intrusions, delayed recall score) | Hour +8 | |
| Secondary | Stanford Sleepiness Scale | Hour +13 | |
| Secondary | Vital signs | Hour +8 | |
| Secondary | Adverse events | Hour +13 |
1 to 10 of 13Source ClinicalTrials.gov
See all 13 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests2
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
| Test | Named as | Source |
|---|---|---|
| Selective Reminding Task | Secondary outcome | ConductCognition |
| Symbol Coding | Secondary outcome | ConductCognition |
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT00667108
GET https://conductscience.org/api/trials/v1/NCT00667108/registered